My ex and I broke up 8 months ago. He has moved out and shown zero interest in pets apart from petting when he comes over to pick up the children. He has new partner, he had his fun and holidays and suddenly asked for pets to spend the time at his. In those months since break up, he has bought no food for any of them. The cat avoids him as he is not part of the household anymore. He has not walked the dog once. He has not offered to clean the hamster cage once either.
To me it looks like he has had his fun, now partner that works at school is returning to work he is looking for something else to fill his days with. He wants pets regularly for a night here or there so I.e. once a week.
Aibu to say no? All the costs are on my head and always have been, from buying food to dealing with insurance and vets. ExP didn't think about pets for months but suddenly does? He ultimately wants pets without having the hassle of having pets full time.